MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541122324 A) filed by Nandha Engineering College, Erode, Tamil Nadu, on Dec. 5, 2025, for 'smart pedestrain crossing system using pir and ultrasonic sensors.'
Inventor(s) include S. A Suje; Mu. Sabari Sekaran; Sanjai Ramanathan; and J S. Sripriya.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "This invention discloses an intelligent pedestrian-safety automation system designed to regulate lroad crossings using real-time sensing rather than fiXed-timer or manually operated signals. The system "ntegrates a microcontroller with a PIR sensor for detecting pedestrian movement and an ultrasonic sensor for measuring approaching vehicle distance, enabling immediate assessment of road safety lc nditions. This dual-sensor logic allows the system to decide precisely when a pedestrian crossing can lbe safely initiated. Upon confirming safe conditions, the controller activates an automated pedestrian crossing sequence by switching the traffic light module to red, turning on the pedestrian green indicator, and initiating an audible alert through a buzzer. A dual 7 -segment display provides a visible countdown imer for pedestrian guidance. If the ultrasonic sensor detects nearby or fast-approaching vehicles, the system prevents crossing activation and maintains the standard traffic flow, ensuring accident-free operation. A manual override button is incorporated for situations where sensor detection may be delayed or temporarily unreliable. The entire system is powered and controlled through an Arduino-based embedded unit programmed to synchronize sensing, decision-making, signal switching, and countdoWil iming. The low-power hardware makes the invention suitable for continuous outdoor deployment under varying enviromental conditions, Designed with modular architecture, the invention is easy to install, configure, and scale fo different road environments spch as school zones, small junctions, residential streets, and rural areas acking advanced traffic infrastructure. By providing an affordable, automated, and sensor-driven approach to pedestrian safety, the invention offers a practical smart-traffic solution for developing egions and contributes significantly to reducing human error and road-crossing accidents."
Disclaimer: Curated by HT Syndication.
